Question

give the chemical symbol for each of the following elements. a. silver b. aluminum c. cadmium d. antimony e. tin f. arsenic
give the chemical symbol for each of the following elements. a. bromine b. bismuth c. mercury d. vanadium e. fluorine f. calcium
for the following processes that show the formation of ions, fill in the number of electrons that must be lost or gained to complete the process. a. sr→sr²⁺ + e⁻ b. se + e⁻→se²⁻ c. fe→fe²⁺ + e⁻ d. p + e⁻→p³⁻ e. br + e⁻→br⁻ f. au→au³⁺ + e⁻

Explanation:

Step1: Recall chemical symbols

Silver is Ag, aluminum is Al, cadmium is Cd, antimony is Sb, tin is Sn, arsenic is As, mercury is Hg, vanadium is V, fluorine is F, calcium is Ca, bromine is Br, bismuth is Bi.

Step2: Write electron - transfer equations

a. Sr has a + 2 charge in Sr²⁺. Sr has 38 electrons in its neutral state and Sr²⁺ has 36 electrons. The equation is Sr→Sr²⁺ + 2e⁻.
b. Se gains 2 electrons to form Se²⁻. The equation is Se+2e⁻→Se²⁻.
c. Fe loses 2 electrons to form Fe²⁺. The equation is Fe→Fe²⁺ + 2e⁻.
d. P gains 3 electrons to form P³⁻. The equation is P + 3e⁻→P³⁻.
e. Br gains 1 electron to form Br⁻. The equation is Br+e⁻→Br⁻.
f. Au loses 3 electrons to form Au³⁺. The equation is Au→Au³⁺+3e⁻.

Answer:

Chemical symbols: Ag, Al, Cd, Sb, Sn, As, Hg, V, F, Ca, Br, Bi
Electron - transfer equations:
a. Sr→Sr²⁺ + 2e⁻
b. Se+2e⁻→Se²⁻
c. Fe→Fe²⁺ + 2e⁻
d. P + 3e⁻→P³⁻
e. Br+e⁻→Br⁻
f. Au→Au³⁺+3e⁻